Sawing-machine



(NoModeL) 2 Sheets-Sheet 1.

J. N. BRITZ.

SAWING MACHINE.

No. 394,455. Patented Dec. 11, 1888.

OODYOOOOO OOOOOOOOOOQQO UNITED STAT S PATENT OFFICE.

JOHN N. BRITZ, OF AFRORA, ILLINOIS.

SAWlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 394,455, dated December 11, 1888.

Application filed June 15, 1888. Serial No. 277,167. No model.)

To all whom it may concern:

Be it known that I, JOHN N. BRITZ, a citizen of the United States, residing at Aurora, in the county of Kane and State of Illinois, have invented a new and useful Improvement in Sawing-Machines, of which the following is a specification.

The invention relates to an improvement in sawing-machines adapted to be attached to and operated by portable steam-engines; and it consists in the peculiar construction and combination of dex'ices that will be more fully set forth hereinafter, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a portable steam-engine, showing my improved sawing machine attached thereto. Fig. 2 is a top plan view of the same. Fig. 3 is a vertical longitudinal sectional view of my improved sawing-machine, the boiler of the engine being represented in dotted lines. Fig. 4 is a vertical transverse sectional view of my improved sawing-machine.

A represents a pair of longitudinal beams, which are connected at one end by means of a cross-bar, B, said cross-bar being secured to the said beams by means of vertical bolts 0. The beams A are connected near their centers by means of a pair of crossed be r D, said bars having their central portions rabbeted together and secured by means of a bolt, E, and having their ends secured to the under sides of the beams A by means of vertical bolts F.

G represents a cross-bar, which is arranged on the upper side of the beams A near the outer ends thereof, and is secured thereon by means of yokes H and vertical bolts I, whereby the said beam G is adapted to be longitudinally adjusted on the beams A. Extending from the outer side of the beam G is a pair of arms or brackets, K, the under sides of which are inclined upward and outward, and the upper sides of which are provided with horizontal longitudinal plates L, the edges of which project beyond the sides of the arms or brackets and form guideways, which engage keepers M, that are arranged on the under side of the carriage or saw-table N, the latter having a flange-board, O, projecting upward from its inner edge. On the upper side of the crossbar G are bearings P, in which is journaled a shaft, H. To one end of the said shaft is secured a suitable circular saw, S, and to the opposite end thereof is secured a fly-wheel, T, and a belt-pulley, I

Y represents a number of slide-arms, which are provided with open slots. Said slide-arms are supported on the beams A, and the slots thereof are engaged by the heads of the bolts and F, whereby the said slides may be adjusted in and out upon the beams A, so as to cause their inner ends to bear against Opposite sides of the boiler a of the engine to which the sawing-machine is attached. This adj ustability of the said slides renders it possible to secure the frame of the sawing-machine to a boiler of any diameter.

\Y represents a series of semicircularbails, which have their lower ends pivotally connected to the upper ends of eyebolts X, said eyebolts extending through vertical openings in the side beams, A, and having adjustingnuts Y on their lower ends. The said bails pass over the boiler, the cross-bars D and the end bar, B, bear against the under side of the boiler, and by tightening the clamping-nuts Y on the lower ends of the eyebolts the bails may be caused to support the frame of the sawing-machine firmly under the boiler, as illustrated in Figs. 1 and 2.

The driving-shaft of the engine has its driw ing-pulley connected to the pulley on the sawarbor by means of an endless belt, and thereby the saw is operated. It will be understood that the cross-bar G bears against the outer end of the boiler. The bails V which are nearest the outer end of the frame are con nected by a link, Z, and thereby the said bails are adapted to bear against opposite sides of the base of the smoke-stack on the upper side of the boiler, as will be readily understood.

A sawing-machine thus constructed may be readily attached to or detached from a portable steam-engine of the usual construction, is very easily operated, and can be manufactured at a comparatively small cost. I have one in operation which saws five cords of firewood per hour.

Having thus described my invention, I claim- 1. The combination of the side beams, A,

adapted to bear against opposite sides of the boiler, the beams D, connecting the beams A and bearing under the boiler, the yokes secured to the beams A and suspending the same from the boiler, the cross-bar G, secured to and adjustable on the projecting ends of beams A, the saw-arbor journaled on said bar, the arms K, extending from the latter, and the carriage guided on the said arms, substantially as described. v

2. The combination, in a sawing-machine adapted to be attached to a portable steam-engine, of the frame bearin under the boiler, the

yokes supporting the said frame and encircling the upper portion of the boiler, and the slide-arms V, secured to and laterally adjustable 011 the frame and bearing against the sides of the boiler, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in 20 presence of two witnesses.

JOHN N. BRITZ.

WVitnesses:

NIooLAs BRITZ, FRANK PLAIN.- 

